diff --git a/helper/time_helper.go b/helper/time_helper.go
index dcfda62..c1fef24 100644
--- a/helper/time_helper.go
+++ b/helper/time_helper.go
@@ -24,3 +24,26 @@ func FormatDt(ts int64) string {
 func FormatDateTime(ts int64) string {
 	return Format(ts, "2006-01-02 15:04:05")
 }
+
+func IsUnixZero(t time.Time) bool {
+	return t.Unix() == 0
+}
+
+func GetTimeUTCPointer() *time.Time {
+	t := time.Now().UTC()
+	return &t
+}
+
+func TimeToPointer(t time.Time) *time.Time {
+	if t.IsZero() {
+		return nil
+	}
+	return &t
+}
+
+func UnixToTimePointer(v int64) *time.Time {
+	if v == 0 {
+		return nil
+	}
+	return TimeToPointer(time.Unix(v, 0))
+}